# Security update for util-linux
Announcement ID: SUSE-SU-2026:23250-1
Release Date: 2026-08-21T14:49:31Z
Rating: important
References:
* bsc#1261606
* bsc#1268886
* bsc#1269583
Cross-References:
* CVE-2026-13595
* CVE-2026-27456
* CVE-2026-53612
* CVE-2026-53613
* CVE-2026-53614
CVSS scores:
* CVE-2026-13595 ( SUSE ): 6.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-13595 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-13595 ( NVD ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-13595 ( NVD ): 5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-27456 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
* CVE-2026-27456 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products:
* SUSE Linux Micro 6.0
An update that solves five vulnerabilities can now be installed.
## Description:
This update for util-linux fixes the following issues:
* CVE-2026-13595: heap use-after-free read in `libblkid` nested partition
probing (bsc#1269583).
* CVE-2026-27456: TOCTOU race condition in the mount program when setting up
loop devices (bsc#1261606).
* Several security issues in releases prior to v2.42.2 and v2.41.5
(bsc#1268886).
## Patch Instructions:
To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
* SUSE Linux Micro 6.0
zypper in -t patch SUSE-SLE-Micro-6.0-858=1
## Package List:
* SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
* util-linux-debuginfo-2.39.3-8.1
* util-linux-systemd-2.39.3-8.1
* libsmartcols1-debuginfo-2.39.3-8.1
* libblkid1-2.39.3-8.1
* libsmartcols1-2.39.3-8.1
* libmount1-debuginfo-2.39.3-8.1
* libuuid1-debuginfo-2.39.3-8.1
* libblkid1-debuginfo-2.39.3-8.1
* libmount1-2.39.3-8.1
* util-linux-systemd-debuginfo-2.39.3-8.1
* libfdisk1-debuginfo-2.39.3-8.1
* libfdisk1-2.39.3-8.1
* util-linux-debugsource-2.39.3-8.1
* libuuid1-2.39.3-8.1
* util-linux-2.39.3-8.1
* util-linux-systemd-debugsource-2.39.3-8.1
## References:
* https://www.suse.com/security/cve/CVE-2026-13595.html
* https://www.suse.com/security/cve/CVE-2026-27456.html
* https://www.suse.com/security/cve/CVE-2026-53612.html
* https://www.suse.com/security/cve/CVE-2026-53613.html
* https://www.suse.com/security/cve/CVE-2026-53614.html
* https://bugzilla.suse.com/show_bug.cgi?id=1261606
* https://bugzilla.suse.com/show_bug.cgi?id=1268886
* https://bugzilla.suse.com/show_bug.cgi?id=1269583
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